User Manual

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User Manual
TFAx Case B start-up
Before the TFAx remote unit is switched on, make sure that:
• the modules hosted in the master unit have been connected each other
with RF jumpers, according to the system design
• every TFLN master optical TRX has been connected to its remote units
• each remote unit has been connected to its coverage antennas
For a correct system start-up, all the remote units have to be
switched on before the master unit.
Once the TFAx has been switched on, its behaviour can be summarized as per
the following steps:
1. When the remote unit is turned on, both the LEDs upon the warm side turn
on for a couple of seconds
2. After that, the unit green LED remains on (thus indicating proper power
supply), while the red LED switches off as soon as the master unit is turned
on (meaning that DL optical power is OK and no alarms are present).
3. Once the master unit has been switched on, the status of both LEDs have
to be the one reported in table 3.4. In case the red LED remains on, please
refer to the troubleshooting section.
4. After being switched on the remote unit starts working correctly. Anyway,
in order to be recognized by the supervision management system, it is
necessary for the corresponding TFLN master optical TRX to carry out the
discovery phase (please refer to Supervision System Manual for more
details). During this phase which can last at max. 4min, depending on the
system complexity, the TFLN LED ┌┘ blinks. Do not connect/disconnect
any cable or any piece of equipment during the discovery phase!
This may result in failing the identification of the remote unit.
Note
: in case discovery doesn’t start automatically, check through the LMT or
the remote supervision whether it has been disabled (refer to LMT or remote
supervision system manuals for further information).
TFAx Case B troubleshooting
Faults can be revealed by LEDs on the TFAx front panel as well as by LMT or
supervision system (running on the remote supervision unit)
Both LMT and supervision system provide full information about the device
causing the alarm. As a consequence, troubleshooting procedure can be very
immediate when failure detection is directly carried out through LMT or
supervision system.
Britecell Plus modules are designed in order to exchange information, so that
each remote unit can receive failure notifications from its external equipment
through dry-contact connections. Moreover, the TFAx constantly monitors the
optical signal received from its TFLN unit to control optical losses.
TFAx
CaseB